Monkeys with genetically modified eyes could help cure color blindness

Dalton’s eyes really only see medium and short wavelengths of light—blues and greens, and their overlap color, yellow. With no receptor for reddish hues, he sees reds as dark yellows and yellow-browns, and greens as mostly yellow—to the extent that human color words mean anything to a monkey. In 1798, a decade before introducing the idea of atoms to chemistry, the English chemist (and squirrel monkey namesake) John Dalton revealed in the Memoirs of the Literary and Philosophical Society of Manchester that all those times when he had to ask his fellow amateur botanists what color a flower was, he wasn’t kidding.

Source: www.wired.com